Fast moving areas of low pressures to produce widespread accumulatingsnows across the Central Plains, Mid Mississippi Valley, Ohio Valley,Central Appalachians, Mid Atlantic, Northern New York and New England...Heavy precipitation to move into Northern to Central California onSaturday.Heavy rains possible for South Texas...Below average temperatures to spread southeast from the NorthernPlains.Active Lake effect snows downwind of the Great Lakes Friday andSaturday.Two fast moving areas of low p...